//
//  AppDelegate.swift
//  YCWeiBoSwift
//
//  Created by 刘胤辰 on 16/7/19.
//  Copyright © 2016年 it.com. All rights reserved.
//

/*

此处逻辑：

是最新版本
    新特性界面
    没有登录：显示访客仕途界面
    登录：显示欢迎界面
不是最新版本
    没有登录：显示访客仕途界面
    登录：显示欢迎界面

*/

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var window: UIWindow?
    
    
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        
        
        window=UIWindow(frame: UIScreen.mainScreen().bounds)
        
        window?.rootViewController=YCMainTabVC()
        
        checkSelectWhichRootVC()
        
        window?.makeKeyAndVisible()
        
        addObserver()
        
        return true
    }
    
    func checkSelectWhichRootVC(){
        
        //此处逻辑：
        
        /*
        
        
        已登录 ：
                第一次登录：新特性
                直接欢迎界面
        未登录：
                直接访客视图界面
        */
        
        if SHUserAccountViewModel.sharedTools.isLogin == true {
            
            //判断是否是第一次登录
            if isNewVersion(){
                
                self.window?.rootViewController = YCNewFeatureVC()
            }else{
                self.window?.rootViewController=YCWelcomeVC()
            }
        }else{
            self.window?.rootViewController=YCMainTabVC()
        }
        
    }

    
    func isNewVersion()->Bool{
        
        // 获取当前的版本
        let currentVersion = NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"] as! String
        // 把字符串转成double类型
        let currentVersionD = Double(currentVersion)!
        // 获取通过偏好设置保存的版本
        let shAppVersion = "shAppVersion"
        let oldVersion = NSUserDefaults.standardUserDefaults().doubleForKey(shAppVersion)
        // 保存获取到的当前版本
        NSUserDefaults.standardUserDefaults().setDouble(currentVersionD, forKey: shAppVersion)
        // 返回是否是最新版本
        return currentVersionD > oldVersion
    }
    
    func changeRootViewController(nof:NSNotification){
        
        if nof.object == nil {
            
            self.window?.rootViewController=YCWelcomeVC()
        }else if ((nof.object as! NSString).isEqualToString("NewFeature")){
            self.window?.rootViewController=YCMainTabVC()
            
        }else{
            
            self.window?.rootViewController=YCMainTabVC()
        }
    }
    
    func addObserver(){
        
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "changeRootViewController:", name: "changeVC", object: nil)
    }
    
    deinit{
        
        NSNotificationCenter.defaultCenter().removeObserver(self)
    }
    
    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }
    
    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }
    
    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }
    
    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }
    
    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }
    
    
}

